diff options
Diffstat (limited to 'payloads')
| -rw-r--r-- | payloads/libpayload/LICENSES | 6 | ||||
| -rw-r--r-- | payloads/libpayload/Makefile | 2 | ||||
| -rw-r--r-- | payloads/libpayload/crypto/Makefile.inc | 30 | ||||
| -rw-r--r-- | payloads/libpayload/crypto/sha1.c | 211 | ||||
| -rw-r--r-- | payloads/libpayload/include/libpayload.h | 22 |
5 files changed, 270 insertions, 1 deletions
diff --git a/payloads/libpayload/LICENSES b/payloads/libpayload/LICENSES index 8882409f36..d81eb72636 100644 --- a/payloads/libpayload/LICENSES +++ b/payloads/libpayload/LICENSES @@ -86,3 +86,9 @@ holders, and the exact license terms that apply. kernel/generic/src/printf/vprintf.c Current version we use: r2745 +* crypto/sha1.c: Public domain + Source: OpenBSD + http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/hash/sha1.c + Original files: src/lib/libc/hash/sha1.c + Current version we use: CVS revision 1.20 2005/08/08 + diff --git a/payloads/libpayload/Makefile b/payloads/libpayload/Makefile index 92bef99a84..959f968f83 100644 --- a/payloads/libpayload/Makefile +++ b/payloads/libpayload/Makefile @@ -54,7 +54,7 @@ endif PLATFORM-$(CONFIG_TARGET_I386) += i386/Makefile.inc TARGETS-y := -BUILD-y := libc/Makefile.inc drivers/Makefile.inc +BUILD-y := crypto/Makefile.inc libc/Makefile.inc drivers/Makefile.inc BUILD-$(CONFIG_TINYCURSES) += curses/Makefile.inc include $(PLATFORM-y) $(BUILD-y) diff --git a/payloads/libpayload/crypto/Makefile.inc b/payloads/libpayload/crypto/Makefile.inc new file mode 100644 index 0000000000..8d9f082b40 --- /dev/null +++ b/payloads/libpayload/crypto/Makefile.inc @@ -0,0 +1,30 @@ +## +## This file is part of the libpayload project. +## +## Copyright (C) 2008 Uwe Hermann <uwe@hermann-uwe.de> +## +## Redistribution and use in source and binary forms, with or without +## modification, are permitted provided that the following conditions +## are met: +## 1. Redistributions of source code must retain the above copyright +## notice, this list of conditions and the following disclaimer. +## 2. Redistributions in binary form must reproduce the above copyright +## notice, this list of conditions and the following disclaimer in the +## documentation and/or other materials provided with the distribution. +## 3. The name of the author may not be used to endorse or promote products +## derived from this software without specific prior written permission. +## +## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +## ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +## SUCH DAMAGE. +## + +TARGETS-y += crypto/sha1.o diff --git a/payloads/libpayload/crypto/sha1.c b/payloads/libpayload/crypto/sha1.c new file mode 100644 index 0000000000..1c68a8019c --- /dev/null +++ b/payloads/libpayload/crypto/sha1.c @@ -0,0 +1,211 @@ +/* + * This file is part of the libpayload project. + * + * It has originally been taken from the OpenBSD project. + */ + +/* $OpenBSD: sha1.c,v 1.20 2005/08/08 08:05:35 espie Exp $ */ + +/* + * SHA-1 in C + * By Steve Reid <steve@edmweb.com> + * 100% Public Domain + * + * Test Vectors (from FIPS PUB 180-1) + * "abc" + * A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D + * "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" + * 84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1 + * A million repetitions of "a" + * 34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F + */ + +#include <libpayload.h> + +typedef u8 u_int8_t; +typedef u32 u_int32_t; +typedef u64 u_int64_t; +typedef unsigned int u_int; + +#if 0 +#include <sys/param.h> +#include <string.h> +#include <sha1.h> +#endif + +#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits)))) + +/* + * blk0() and blk() perform the initial expand. + * I got the idea of expanding during the round function from SSLeay + */ +#if BYTE_ORDER == LITTLE_ENDIAN +# define blk0(i) (block->l[i] = (rol(block->l[i],24)&0xFF00FF00) \ + |(rol(block->l[i],8)&0x00FF00FF)) +#else +# define blk0(i) block->l[i] +#endif +#define blk(i) (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \ + ^block->l[(i+2)&15]^block->l[i&15],1)) + +/* + * (R0+R1), R2, R3, R4 are the different operations (rounds) used in SHA1 + */ +#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30); +#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30); +#define R2(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30); +#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30); +#define R4(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30); + +/* + * Hash a single 512-bit block. This is the core of the algorithm. + */ +void +SHA1Transform(u_int32_t state[5], const u_int8_t buffer[SHA1_BLOCK_LENGTH]) +{ + u_int32_t a, b, c, d, e; + u_int8_t workspace[SHA1_BLOCK_LENGTH]; + typedef union { + u_int8_t c[64]; + u_int32_t l[16]; + } CHAR64LONG16; + CHAR64LONG16 *block = (CHAR64LONG16 *)workspace; + + (void)memcpy(block, buffer, SHA1_BLOCK_LENGTH); + + /* Copy context->state[] to working vars */ + a = state[0]; + b = state[1]; + c = state[2]; + d = state[3]; + e = state[4]; + + /* 4 rounds of 20 operations each. Loop unrolled. */ + R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3); + R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7); + R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11); + R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15); + R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19); + R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23); + R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27); + R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31); + R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35); + R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39); + R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43); + R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47); + R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51); + R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55); + R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59); + R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63); + R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67); + R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71); + R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75); + R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79); + + /* Add the working vars back into context.state[] */ + state[0] += a; + state[1] += b; + state[2] += c; + state[3] += d; + state[4] += e; + + /* Wipe variables */ + a = b = c = d = e = 0; +} + + +/* + * SHA1Init - Initialize new context + */ +void +SHA1Init(SHA1_CTX *context) +{ + + /* SHA1 initialization constants */ + context->count = 0; + context->state[0] = 0x67452301; + context->state[1] = 0xEFCDAB89; + context->state[2] = 0x98BADCFE; + context->state[3] = 0x10325476; + context->state[4] = 0xC3D2E1F0; +} + + +/* + * Run your data through this. + */ +void +SHA1Update(SHA1_CTX *context, const u_int8_t *data, size_t len) +{ + size_t i, j; + + j = (size_t)((context->count >> 3) & 63); + context->count += (len << 3); + if ((j + len) > 63) { + (void)memcpy(&context->buffer[j], data, (i = 64-j)); + SHA1Transform(context->state, context->buffer); + for ( ; i + 63 < len; i += 64) + SHA1Transform(context->state, (u_int8_t *)&data[i]); + j = 0; + } else { + i = 0; + } + (void)memcpy(&context->buffer[j], &data[i], len - i); +} + + +/* + * Add padding and return the message digest. + */ +void +SHA1Pad(SHA1_CTX *context) +{ + u_int8_t finalcount[8]; + u_int i; + + for (i = 0; i < 8; i++) { + finalcount[i] = (u_int8_t)((context->count >> + ((7 - (i & 7)) * 8)) & 255); /* Endian independent */ + } + SHA1Update(context, (u_int8_t *)"\200", 1); + while ((context->count & 504) != 448) + SHA1Update(context, (u_int8_t *)"\0", 1); + SHA1Update(context, finalcount, 8); /* Should cause a SHA1Transform() */ +} + +void +SHA1Final(u_int8_t digest[SHA1_DIGEST_LENGTH], SHA1_CTX *context) +{ + u_int i; + + SHA1Pad(context); + if (digest) { + for (i = 0; i < SHA1_DIGEST_LENGTH; i++) { + digest[i] = (u_int8_t) + ((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255); + } + memset(context, 0, sizeof(*context)); + } +} + +/** + * Compute the SHA-1 hash of the given data as specified by the 'data' and + * 'len' arguments, and place the result -- 160 bits (20 bytes) -- into the + * specified output buffer 'buf'. + * + * @param data Pointer to the input data that shall be hashed. + * @param len Length of the input data (in bytes). + * @param buf Buffer which will hold the resulting hash (must be at + * least 20 bytes in size). + * @return Pointer to the output buffer where the hash is stored. + */ +u8 *sha1(const u8 *data, size_t len, u8 *buf) +{ + SHA1_CTX ctx; + + SHA1Init(&ctx); + SHA1Update(&ctx, data, len); + SHA1Final(buf, &ctx); + + return buf; +} diff --git a/payloads/libpayload/include/libpayload.h b/payloads/libpayload/include/libpayload.h index fb3403a005..5595ff6978 100644 --- a/payloads/libpayload/include/libpayload.h +++ b/payloads/libpayload/include/libpayload.h @@ -41,6 +41,14 @@ #define MAX(a,b) ((a) > (b) ? (a) : (b)) #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) +#define LITTLE_ENDIAN 1234 +#define BIG_ENDIAN 4321 +#ifdef CONFIG_TARGET_I386 +#define BYTE_ORDER LITTLE_ENDIAN +#else +#define BYTE_ORDER BIG_ENDIAN +#endif + /* Some NVRAM byte definitions */ #define NVRAM_RTC_SECONDS 0 #define NVRAM_RTC_MINUTES 2 @@ -117,6 +125,20 @@ int vsprintf(char *str, const char *fmt, va_list ap); int printf(const char *fmt, ...); int vprintf(const char *fmt, va_list ap); +/* libc/sha1.c */ +#define SHA1_BLOCK_LENGTH 64 +#define SHA1_DIGEST_LENGTH 20 +typedef struct { + u32 state[5]; + u64 count; + u8 buffer[SHA1_BLOCK_LENGTH]; +} SHA1_CTX; +void SHA1Init(SHA1_CTX *context); +void SHA1Transform(u32 state[5], const u8 buffer[SHA1_BLOCK_LENGTH]); +void SHA1Update(SHA1_CTX *context, const u8 *data, size_t len); +void SHA1Final(u8 digest[SHA1_DIGEST_LENGTH], SHA1_CTX *context); +u8 *sha1(const u8 *data, size_t len, u8 *buf); + /* libc/string.c */ size_t strnlen(const char *str, size_t maxlen); size_t strlen(const char *str); |